Gasoline motor



May 19, 1931. H. L. ADAMS 1,806,233

GASOLINE MOTOR Filed April 22, 1929- 3 Sheets-Sheet l Aj* I l g 6 l -5N Ik* /5 /Z JH 3/ f /A 30 la 23 f7 ,(6` l 5* /J' Zzgl-Za JZZJzZafzdwuQ/wbo l l l V l,

H. L. ADAMS GASOLINE MOTOR May 19, 1931.

s sheets-sheet 2 Filed April 22, 1929 LLLI/ May 19, 1931. H. L. ADAMS 1,806,233

GAS OLINE MOTOR Filed April 22, 1929 3 Sheets-Sheet 3 @Hmmm/Im Patented May 19, 1931 UNITED STATES HARRY LEE ADAMS, OF ELVINS, MISSOURI GASOLIfNE MOTOR Application sied `apra a2,

This invention aims to provide novel means for rotating the piston of an internal combustion engine, as the piston reciprocates, the construction being such that valves may be dispensed with, a simple but eiiicient engine resulting.

The invention aims to improve devices of the type hereinafter described, and it is understood that a mechanic, governed by the claims, may make changes in the precise form shown, without departing `from the spirit of the invention.

Figure 1 is a longitudinal section; Figure 2 is a view showing the cylinder developed;

' 15 Figure 3 is a View showing the piston developed; Figure 4 is a horizontal or transverse section (in this view, line 1-1 shows where Figure 1 is cut) Figure 5 is a section through the port in the piston; Figure 6 is 2o a section through the guide groove in the cylinder; Figure 7 is a cross section through the projection on the piston.

On a base or crank case 1 is secured a cylinder 2 water-jacketed at 3 and carrying an inwardly-projecting hollow head 4, there being a space lbetween the head and the cylinder wall, the inner end of the head carrying a spark plug 6 and a packing ring 7. Oil from the crank case 1 is delivered through a tube 8 into the space 5. The cylinder 2 has an exhaust port 9 and an intake port 10 located side by side, and has an exhaust port 11 disposed opposite to the intake port 10, the port 11 located by the side of an intake port 12 arranged opposite to the exhaust port 9, as Figure 4 shows. Suitable conduits 14 for the ports 9, 10, 11, and 12, are attached to the cylinder 2. Around the inside of the cylinder 2 extends a zig-Zag guide groove 15, the constituent members 16 of which slant lengthwise of the cylinder, as at 17 in Figure 6, the shallow part 18 of one member 16 ot' the groove 15 being disposed immediately adjacent to the deepest part 19 of the next-adjoining member 16, to form a shoulder 20 where one groove-members 16 communicates with an adjoining groove-member.

A cup-shaped piston 21 slides in the cylinder 2 and in the space 5 and includes a partition 34, the piston carrying a packing ring 1929. Serial No. 357,232.

29. The pitman 24 is connected by a ball and socket joint 23 with a trame 22 on the piston 21, so that when the piston reciprocates with the pitman, it can rotate with respect to the pitman. At its inner end, the piston 21 has inwardly-projecting sockets 25 in which are secured studs 26 surrounded by compression springs 27 that thrustoutwardly, sleeves 28 slidable on the studs and in the sockets 25, the sleeves constituting springadvanced projections that ride in the zigzag groove.

There are ports 30 through the wall oit' the piston 21, and these ports have reduced extensions 31 at their inner ends. Frames 32 lit closely in the ports 30 and have necks 33 received in the extensions 31 ot' the ports. Pressure inside the piston 21 tinds its way underneath the frames 32, and this circumstance, coupled with the further tact that theA cracks around the frames 32 getfull of carbon in a short time, prevent any leakage about the frames, the frames being shoved out against the cylinder 2 by the pressure within or behind the frames, and the carbon acting as a sealing medium.

In practical operation, the charge is compressed wthin the piston 21 between the platform' 34 and the inner end of the head 4. The

sleeves or projections 28 ride in the zig-zag groove 15 and cause the piston 21 to rotate, the ports 30 of the piston being brought into registration with the ports 9-10-11-12 of the cylinder' in properly-timed relation. The springs 27 keep the outer ends of the sleeves 28 in the groove 15, and the shoulders 20, cooperating with the sleeves or projections 28, positively prevent retrograde movement of the piston 21, as it rotates, the piston, of course, having a combined rotary and reciprocatory movement.

The general construction is such that no counter-shaft, cam shaft, or valve is necessary, and the invention produces a highly efficient and correspondingly simple invention.

I claim:

1. In an internal combustion engine, a cylinder having a zig-zag guide groove, a pis- -ton mounted to reciprocate in the cylinder,

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f2 i Y Y Y i 1,806,233

the piston andthe cylinder having ports so located as to be capable of registratiom'the Y piston being provided With a socket, a stud mounted in thesocket, a sleeve'slidableon 5 the stud and in the socket, anda compression spring in the socket, about the stud, and

cooperating With the sleeve to advance the sleeve Yand canse Athe sleeve to cooperate with the guide groove, thereby to rotate thepiston 10 and cause the ports of the piston and the cylinder to register. w Y- 2. In an internal combustion engine, a cyllinderhaving a Zig-zag groove, the base LWalls .of the constituent"me111beIS of the groove 15s1anting longitudinallybf Vthe cylinder, vso

*.fthatrtheV shalloyvestV partof one member vof theguide groove. is `immediately acent to 4 ,the deepest partof an adj oining member vof the J guide groove, whereby Vto form a rigid,

' goyintegral shoulder, a Vpiston mounted to re- A,eiprocajte in thercylinderand having Ia'soeket,

" ,the piston Vand .the Vcylinder having ports so Y located as'tobe capable of registration, a projection slidable in the socket and cooperating k,2'5 With .thegnide groove, torotate the piston and cause the yports of the piston and `the :cylinder to register, and a spring-housed in the ysocket and-constituting means for adf vancing the projection and keeping the prok30 ject'ion engagedvwith the basel of the guide groove, the springV constituting means Jfor advancing .the Yprojection,With respect to the I shoulder, thereby yto prevent retrograde rotaf l35 In testimony that I claim the foregoing as my own, I have hereto affixed my signature;

HARRY LEE ADAMS). j, 

